Usb devices dont work when windows 7 starts

[banquanaguy]

I just installed my new b350 tomahawk along with my ryzen 3 1200 and when I start my computer, the keyboard and mouse work but when windows 7 starts, they stop working

 

[kylesful]

did you update your driver software?

 

[Paul NZ]

Win7 isnt really compatible with Ryzens or Coffee Lakes. And you wont be able to update it either.

And you may find that there are no Win7 drivers for it either